08/28/2018, M4.4 near La Verne

28 Aug 2018 19:33:28 PDT, (34.137, -117.775), depth 5.5km, 4km N of La Verne, California Aftershocks: so far (29 Aug 2018, 08:05AM PDT) there have been 37 aftershocks recorded, the largest M3.4 (smallest M0.5). More may be expected in the

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The Cahuilla Earthquake Swarm: 2016-2018

Update: 24 August 2018 Egill Hauksson, Zach Ross and Jen Andrews, Caltech; Elizabeth Cochran, USGS Pasadena The most recent Cahuilla swarm, which started in mid-2016, has grown steadily in number of events (currently ~6,300 of magnitude larger than 0.3) and

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08/14/2018, M4.4 near Aguanga

14 Aug 2018 18:24:26 PDT, (33.477, -116.803), depth 1.9km, 7km NE of Aguanga, California Aftershocks: so far (16 Aug 2018, 10:48AM PDT) there have been 435 aftershocks recorded, the largest M2.9 (smallest M0.0). More may be expected in the next

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07/25/2018, M4.2 near Ensenada

25 Jul 2018 13:17:56 PDT, (31.950, -116.298), depth 15.8km, 32km ENE of Ensenada, B.C., Mexico Aftershocks: so far there have been no aftershocks recorded. Some may be expected in the next few days, the largest expected is approximately 1 magnitude

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07/10/2018, M3.6 near Ontario

10 Jul 2018 04:08:37 PDT, (34.010, -117.585), depth 4.3km, 6km SE of Ontario, California Aftershocks: so far (10 Jul 2018, 07:23AM PDT) there have been 5 aftershocks recorded, the largest M2.5 (smallest M0.9). More may be expected in the next

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05/30/2018, M3.8 near Thousand Palms

30 May 2018 12:22:05 PDT, (33.924, -116.323), depth 9.5km, 13km NNE of Thousand Palms, California Aftershocks: so far (30 May 2018, 12:33PM PDT) there have been 2 aftershocks recorded, the largest M1.2 (smallest M0.9). More may be expected in the

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05/08/2018, M4.5 near Cabazon

A M4.5 earthquake occurred at 4:49 local time this morning (May 8) under the San Bernardino Mountains, near a complex part of the San Andreas fault. Seismologists call this region the “San Gorgonio knot” because so many small faults intersect

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05/01/2018, M3.7 near San Clemente Is

01 May 2018 04:22:22 PDT, (32.787, -118.443), depth 8.0km, 10km WSW of San Clemente Is. Aftershocks: so far (01 May 2018, 07:20AM PDT) there have been 3 aftershocks recorded, the largest M3.4 (smallest M2.8). More may be expected in the

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04/25/2018, M3.9 near Borrego Springs

25 Apr 2018 18:36:00 PDT, (33.380, -116.298), depth 13.9km, 16km NNE of Borrego Springs, California Aftershocks: so far (26 Apr 2018, 02:27PM PDT) there have been 5 aftershocks recorded, the largest M1.2 (smallest M0.8). More may be expected in the

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04/22/2018, M3.9 near Thousand Palms

22 Apr 2018 17:46:08 PDT, (33.922, -116.322), depth 8.2km, 13km NNE of Thousand Palms, California Aftershocks: so far (23 Apr 2018, 07:19AM PDT) there have been 7 aftershocks recorded, the largest M2.2 (smallest M0.8). More may be expected in the

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